Steel Beam Sizes / AISC / WT Tees / WT4x15.5
WT4x15.5 Dimensions, Weight and Section Properties
AISC Structural tees · v16.0
WT4x15.5: 4 in depth, 8 in flange width, 15.5 lb/ft weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
WT4x15.5 dimensions
Not to scale. Dimensions shown for reference.
Section properties
Symbols match the steel section finder. Imperial and metric values are shown side by side.
| Property | Imperial | Metric |
|---|---|---|
| Weight | 15.50 lb/ft | 23.10 kg/m |
| Depth, d | 4.00 in | 102.00 mm |
| Flange width, bf | 8.00 in | 203.00 mm |
| tw | 0.285 in | 7.240 mm |
| tf | 0.435 in | 11.000 mm |
| Area | 4.56 in² | 2,940.00 mm² |
| Ix | 4.28 in⁴ | 1,780,000 mm⁴ |
| Iy | 18.50 in⁴ | 7,700,000 mm⁴ |
| Sx | 1.28 in³ | 21,000.00 mm³ |
| Sy | 4.64 in³ | 76,000.00 mm³ |
| Zx | 2.39 in³ | 39,200.00 mm³ |
| Zy | 7.03 in³ | 115,000.00 mm³ |
| rx | 0.97 in | 24.60 mm |
| ry | 2.02 in | 51.30 mm |
| J | 0.27 in⁴ | 111,000.00 mm⁴ |
| Cw | 0.33 in⁶ | 87,800,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus WT4x15.5.
Lighter in WT4
WT4x14
- Weight
- 14.0 lb/ft (-9.7%)
- Depth
- 4.03 in (+0.8%)
- Ix
- 4.2 in⁴ (-1.2%)
Heavier in WT4
WT4x17.5
- Weight
- 17.5 lb/ft (+13%)
- Depth
- 4.06 in (+1.5%)
- Ix
- 4.8 in⁴ (+13%)
Another Iₓ option in WT4
WT4x10.5
- Weight
- 10.5 lb/ft (-32%)
- Depth
- 4.14 in (+3.5%)
- Ix
- 3.9 in⁴ (-8.9%)
Similar weight in WT5
WT5x15
- Weight
- 15.0 lb/ft (-3.2%)
- Depth
- 5.24 in (+31%)
- Ix
- 9.3 in⁴ (+117%)
Source: AISC Shapes Database v16.0 · Methodology